The 18-year-old agreed to sign the deal with the club back in October, and with the opening of the January transfer window, has made the switch from Association Jeunes Espoirs De Bobo-Dioulasso.

He told his new club's official website: "I'm an attacking midfielder. I can play in the No. 10 position, I can play on the wings and I'm good on the ball. I can shoot well and am strong in a one vs. one situation, so I can score goals.

"My favourite players are Juan Mata, Mesut Ozil and Eden Hazard. They're very good players and I am trying to be like them.

"At Chelsea I look to follow the way of some African legends like Didier Drogba, Michael Essien and now Samuel Eto'o."

The deal to bring Traore to Chelsea was first revealed back in November, with Jose Mourinho saying he thought the midfielder was one of the brightest talents of his age.

The youngster was on trial during the Blues' pre-season tour of Asia and played in all three games.